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54 #include "object/oid_list.h"
56 /***************************************
58 ****************************************/
60 class tuple: public oid_list
65 tuple(c_code_t = TUPLE_CODE);
66 tuple(int num_comps, c_code_t);
70 MMDB_SIGNATURES(tuple);
73 // value comparison functions
74 virtual Boolean value_EQ(root&, Boolean safe = true) const ;
75 virtual Boolean value_LS(root&, Boolean safe = true) const ;
78 // insert component function
79 Boolean pinned_insert(int index, const oid_t&);
81 // iteration over components
82 virtual handler* get_component(int index) ;
83 //virtual handler* get_component(oid_t& comp_oid) ;
86 virtual io_status asciiOut(ostream&) ;
87 virtual io_status asciiIn(istream&) ;
90 HANDLER_SIGNATURES(tuple)